Gallobeudantite is a secondary, Gallium-bearing mineral of beudantite, where the Iron is replaced with Gallium, a rare-earth metal. It was first described as a distinct mineral by Jambor et al in 1996.[1] Specific Gallium minerals are generally rare and Gallium itself is usually obtained as a by-product during the processing of the ores of other metals. In particular, the main source material for Gallium is bauxite, a key ore of aluminium. However, Gallobeudantite is too rare[2] to be of economic value. Its main interest is academic and also among mineral collectors.
Jambor et al.[1] describes Gallobeudantite as having occurred as zoned rhombohedra, up to 200 μm along an edge, in vugs in a single specimen of massive Cu-bearing sulfides from Tsumeb, Namibia. Gallobeudantite can be pale yellow, greenish, or cream-colored and has a white to pale yellow streak.[3] It has a vitreous luster.
Since the discovery of Gallobeudantite, there has been renewed interest in this class of mineral, particularly in the famous Apex deposit in Utah[4] and additional studies on the crystal structure of Ga-rich plumbogummite from Tsumeb[5]
The mineral has only been found so far in the Namibian Tsumeb Mine, located in the Oshikoto Region.[6] The mineral is a mixture of three elements Gallium, Arsenic and Lead with the formula .
Referencesedit
^ abJambor John L, Owens Dealton R, Grice Joel D, Feinglos Mark N (December 1996). "Gallobeudantite, PbGa 3 [(AsO 4 ),(SO 4 )] 2 (OH) 6 , a new mineral species from Tsumeb, Namibia, and associated new gallium analogues of the alunite-jarosite family". The Canadian Mineralogist. 34 (6): 1305–1315.
^Dutrizac, John E.; Jambor, John L. (2001-12-31), "8. Jarosites and Their Application in Hydrometallurgy", Sulfate Minerals, De Gruyter, pp. 405–452, doi:10.1515/9781501508660-010, ISBN9781501508660, retrieved 2022-05-23
^"Geology and mineralogy of the Apex germanium-gallium mine, Washington County, Utah". 1986. doi:10.3133/b1577. {{cite journal}}: Cite journal requires |journal= (help)
^Mills, S. J.; Kampf, A. R.; Raudsepp, M.; Christy, A. G. (2009). "The crystal structure of Ga-rich plumbogummite from Tsumeb, Namibia". Mineralogical Magazine. 73 (5): 837–845. Bibcode:2009MinM...73..837M. doi:10.1180/minmag.2009.073.5.837. hdl:1885/53552. ISSN 0026-461X. S2CID 96100676.
gallobeudantite, secondary, gallium, bearing, mineral, beudantite, where, iron, replaced, with, gallium, rare, earth, metal, first, described, distinct, mineral, jambor, 1996, specific, gallium, minerals, generally, rare, gallium, itself, usually, obtained, pr. Gallobeudantite is a secondary Gallium bearing mineral of beudantite where the Iron is replaced with Gallium a rare earth metal It was first described as a distinct mineral by Jambor et al in 1996 1 Specific Gallium minerals are generally rare and Gallium itself is usually obtained as a by product during the processing of the ores of other metals In particular the main source material for Gallium is bauxite a key ore of aluminium However Gallobeudantite is too rare 2 to be of economic value Its main interest is academic and also among mineral collectors GallobeudantiteGeneralCategoryArsenate mineralsFormula repeating unit PbGa3 AsO4 SO4 OH 6Crystal class3m Ditrigonal PyramidalUnit cella 7 225 4 A c 17 03 2 AIdentificationColorPale yellow greenish or cream coloredCrystal habitTrigonalCleavageDistinct GoodFractureConchoidalTenacityBrittleLusterVitreousStreakpale yellow whiteSpecific gravity4 87 calculated Other characteristicsNon radioactive Jambor et al 1 describes Gallobeudantite as having occurred as zoned rhombohedra up to 200 mm along an edge in vugs in a single specimen of massive Cu bearing sulfides from Tsumeb Namibia Gallobeudantite can be pale yellow greenish or cream colored and has a white to pale yellow streak 3 It has a vitreous luster Since the discovery of Gallobeudantite there has been renewed interest in this class of mineral particularly in the famous Apex deposit in Utah 4 and additional studies on the crystal structure of Ga rich plumbogummite from Tsumeb 5 The mineral has only been found so far in the Namibian Tsumeb Mine located in the Oshikoto Region 6 The mineral is a mixture of three elements Gallium Arsenic and Lead with the formula PbGa 3 AsO 4 SO 4 2 OH 6 displaystyle ce PbGa3 AsO4 SO4 2 OH 6 References edit a b Jambor John L Owens Dealton R Grice Joel D Feinglos Mark N December 1996 Gallobeudantite PbGa 3 AsO 4 SO 4 2 OH 6 a new mineral species from Tsumeb Namibia and associated new gallium analogues of the alunite jarosite family The Canadian Mineralogist 34 6 1305 1315 Dutrizac John E Jambor John L 2001 12 31 8 Jarosites and Their Application in Hydrometallurgy Sulfate Minerals De Gruyter pp 405 452 doi 10 1515 9781501508660 010 ISBN 9781501508660 retrieved 2022 05 23 Gallobeudantite Geology and mineralogy of the Apex germanium gallium mine Washington County Utah 1986 doi 10 3133 b1577 a href Template Cite journal html title Template Cite journal cite journal a Cite journal requires journal help Mills S J Kampf A R Raudsepp M Christy A G 2009 The crystal structure of Ga rich plumbogummite from Tsumeb Namibia Mineralogical Magazine 73 5 837 845 Bibcode 2009MinM 73 837M doi 10 1180 minmag 2009 073 5 837 hdl 1885 53552 ISSN 0026 461X S2CID 96100676 Gallobeudantite Mineral Data Retrieved from https en wikipedia org w index php title Gallobeudantite amp oldid 1139107003, wikipedia, wiki, book, books, library,
